Monitor lifting device

Abstract

The present invention discloses a display lifting device, comprising: a bracket, a lifting seat and a pulling mechanism, the bracket is provided with an accommodating space, the lifting seat is provided with a slider slidably mounted in the accommodating space, and there is friction between the slider and the inner wall of the accommodating space; the pulling mechanism is installed in the lifting seat, comprising a coil spring, a coil spring seat, a pulley assembly and a pull rope, the coil spring seat is rotatably installed in the lifting seat, one end of the pull rope is fixedly connected to the coil spring seat, and the other end thereof is connected to the slider by bypassing the pulley assembly; the coil spring comprises a free end and a drum portion, the free end is fixedly connected to the coil spring seat, and the drum portion is rotatably arranged in the lifting seat. The display lifting device of the present invention greatly reduces the volume of the bracket, reduces the cost, has a simple structure, and is easy to process and assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and in particular to a display lifting device. Background Art

[0002] At present, various monitors have been widely used in today's life. The monitor is a kind of monitor that is approximately plate-shaped. It cannot stand on its own and must be supported by a lifting bracket such as a support frame to be used. In order to be more convenient to use in actual use, most monitors also need to be able to be lifted and lowered. In order to achieve the lifting function, the lifting bracket commonly used to carry monitors today is often provided with a related linkage mechanism in the lifting bracket. Specifically, the adjustment of the lifting height is achieved by using a lifting device in the support frame that can balance the gravity of the monitor.

[0003] For example, a display lifting device disclosed in Chinese patent application No. 201911117899.4 includes a sliding assembly, a support frame and a base. The sliding assembly includes a movable block and at least one constant force spring. The movable block and the constant force spring are both placed in the support frame. Since the components of the sliding assembly generally use standard parts and occupy a large volume, in order to meet its use, the support frame must also be of a large volume, and the support frame cannot be lightweight and small in size, which does not meet people's current aesthetic requirements. The thickness and width of the support frame cannot be reduced, which increases the difficulty and cost of processing the support frame. In addition, the traditional lifting device structure is relatively complex and the cost is relatively high. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a display lifting device to overcome the defects of the existing lifting devices, such as large volume, complex structure and high cost.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a display lifting device, comprising:

[0006] The bracket is provided with an accommodating space, and a notch communicating with the accommodating space is provided on one side of the bracket along the height direction;

[0007] The lifting seat is provided with a slider, the slider passes through the slot and is slidably fitted in the accommodation space, and there is friction between the slider and the inner wall of the accommodation space;

[0008] The pulling mechanism is installed in the lifting seat, including a coil spring, a coil spring seat, a pulley assembly and a pull rope. The coil spring seat is rotatably installed in the lifting seat, one end of the pull rope is fixedly connected to the coil spring seat, and the other end of the pull rope is connected to the slider by bypassing the pulley assembly; the coil spring includes a free end and a drum part, the free end is fixedly connected to the coil spring seat, and the drum part is rotatably arranged in the lifting seat; when the lifting seat is moved up and down along the bracket under the application of external force, the drum part is synchronously unfolded or reeled, and under the action of the elastic force of the coil spring and the friction force, the lifting seat can stay at any position within the travel range.

[0009] As a further improvement of the present invention, the lifting seat includes a shell and a shell cover installed on the shell, a limiting column is arranged in the shell, and the coil spring seat is rotatably sleeved on the limiting column.

[0010] As a further improvement of the present invention, a coil spring accommodating groove is provided in the coil spring seat, the coil drum portion is provided in the coil spring accommodating groove, and the end of the coil drum portion is fixedly connected to the limiting column.

[0011] As a further improvement of the present invention, a first fan-shaped boss is provided on the side wall of the coil spring accommodating groove, and the free end is fixedly connected to the first fan-shaped boss.

[0012] As a further improvement of the present invention, the coil spring seat extends radially along the outer side to form a first annular boss, and an annular wire groove is arranged on the first annular boss; a second fan-shaped boss is arranged in the coil spring accommodating groove, and the pull rope is arranged around the annular wire groove and fixedly connected to the second fan-shaped boss.

[0013] As a further improvement of the present invention, a winding groove is formed between the first annular boss and the inner wall of the shell.

[0014] As a further improvement of the present invention, a coil spring cover is installed outside the coil spring seat, and the coil spring cover is provided with a second annular boss. The coil spring cover is fixed to the limiting column by screws, and the second annular boss covers the annular wire groove.

[0015] As a further improvement of the present invention, the pulley assembly includes two fixed pulleys, and two corresponding limiting bosses are provided on the shell and the shell cover, one of the fixed pulleys is installed between the two limiting bosses through a pin shaft, and the other fixed pulley is installed on the top of the accommodating space through a pin shaft; the pull rope is connected to the slider by winding around the two fixed pulleys in turn.

[0016] As a further improvement of the present invention, the slider and the housing are an integrated structure.

[0017] As a further improvement of the present invention, the outer sliding block is provided with a sliding block sleeve, and a plurality of convex ribs are provided on the outer side of the sliding block sleeve, and the friction force is generated by the contact between the convex ribs and the inner wall of the accommodating space.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention provides a display lifting device, which is provided with a bracket and a lifting seat. The slider of the lifting seat can slide in the accommodating space of the bracket. With this structure, the bracket can be square, cylindrical or polygonal, and its shape is not limited and can be selected according to needs. The diameter or size of the bracket can be very small, which greatly reduces the volume of the bracket, is easy to process, reduces material use, reduces costs, and can bring higher aesthetics to users;

[0020] 2. The outer fixed sleeve of the slider is equipped with a slider sleeve, which can reduce friction and effectively prevent jamming. It can increase the damping force when the lifting seat slides, giving users a better use experience, preventing noise, and preventing assembly shaking;

[0021] 3. A tension mechanism is installed in the lifting seat, which includes a coil spring installed in the coil spring seat and a pull rope respectively connecting the slider and the coil spring seat. When the lifting seat moves up and down along the bracket under the application of external force, the coil spring is synchronously unfolded or reeled by contracting or stretching the pull rope. Under the action of the elastic force of the coil spring and the friction between the slider sleeve and the accommodating space, the gravity of the display and the lifting seat can be balanced, so that the lifting seat can stay at any position within the travel range. This structure is simple, easy to assemble, and has good stability. It can ensure that the lifting seat stays more stably, further saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 A cross-sectional view of another direction of the present invention;

[0025] Figure 4 An exploded view of the present invention;

[0026] Figure 5 A three-dimensional diagram of a coil spring seat of the present invention;

[0027] Figure 6 A three-dimensional diagram of the coil spring seat of the present invention from another perspective;

[0028] Figure 7 It is a three-dimensional diagram of the housing of the present invention.

[0029] Combined with the accompanying drawings, the following description is given:

[0030] 1——bracket; 101——accommodation space;

[0031] 102——notch; 2——lifting seat;

[0032] 201——housing; 2011——slider;

[0033] 2012——Limiting column; 2013——Limiting boss;

[0034] 202——shell cover; 3——slider sleeve;

[0035] 4——coil spring; 401——free end;

[0036] 402——reel part; 5——reel spring seat;

[0037] 501——coil spring receiving groove; 5011——first fan-shaped boss;

[0038] 502——first annular boss; 5021——annular wire groove;

[0039] 503——second fan-shaped boss; 504——winding groove;

[0040] 6——pull rope; 7——coil spring cover;

[0041] 701——second annular boss; 8——screw;

[0042] 9——Fixed pulley. DETAILED DESCRIPTION

[0043] A preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0044] See also Figures 1 to 7The present invention provides a display lifting device, comprising: a bracket 1, a lifting seat 2 and a pulling mechanism. The bracket 1 is a hollow tube, and the hollow interior of the bracket 1 forms an accommodating space 101. A notch 102 communicating with the accommodating space 101 is provided on one side of the bracket 1 along the height direction. The lifting seat 2 is provided with a slider 2011 that cooperates with the accommodating space 101. The slider 2011 passes through the notch 102 and is slidably fitted in the accommodating space 101, and there is friction between the slider 2011 and the inner wall of the accommodating space 101. The bracket 1 is fixedly mounted with an upper cover at the top, and the upper cover and the bottom of the notch 102 limit the travel range of the slider 2011. A slider sleeve 3 is provided outside the slider 2011, and a plurality of convex ribs are provided on the outer side of the slider sleeve 3. The friction is generated by the contact between the convex ribs and the inner wall of the accommodating space 101. With this structure, the convex rib can reduce the friction between the slider sleeve 3 and the inner wall of the accommodating space 101, and can effectively prevent jamming; the slider sleeve 3 can increase the damping force when the lifting seat 2 slides, giving the user a better user experience, preventing noise, and preventing assembly shaking, etc., thereby improving the stability of the lifting seat 2 moving up and down.

[0045] See also Figure 1 and Figure 2 , the tension mechanism is installed in the lifting seat 2, and the tension mechanism is used to provide tension, and make the tension and friction force balanced with gravity. The tension mechanism includes a coil spring 4, a coil spring seat 5, a pulley assembly and a pull rope 6. The coil spring seat 5 is rotatably installed in the lifting seat 2, one end of the pull rope 6 is fixedly connected to the coil spring seat 5, and the other end thereof is connected to the slider 2011 by passing through the pulley assembly. The coil spring 4 includes a free end 401 and a drum portion 402, the free end 401 is fixedly connected to the coil spring seat 5, and the drum portion 402 is rotatably arranged in the lifting seat 2. When the lifting seat 2 moves up and down along the bracket 1 under the application of external force, the drum portion 402 is synchronously unfolded or reeled, and under the action of the elastic force of the coil spring 4 and the friction force, the lifting seat 2 can stop at any position within the travel range. This structure is simple and can ensure that the lifting seat 2 stays relatively stably.

[0046] See also Figure 2 and Figure 4The lifting seat 2 includes a shell 201 and a shell cover 202 mounted on the shell 201. The shell cover 202 is fixed to the shell 201 by screws 8. The coil spring 4 and the coil spring seat 5 are both installed between the shell 201 and the shell cover 202. A limiting column 2012 is arranged at the center of the shell 201. The coil spring seat 5 is provided with a through hole matching the limiting column 2012. The coil spring seat 5 is sleeved on the limiting column 2012 through the through hole and can rotate around the limiting column 2012. A coil spring accommodating groove 501 is arranged in the coil spring seat 5. The winding drum portion 402 is arranged in the coil spring accommodating groove 501. The end of the winding drum portion 402 is fixedly connected to the limiting column 2012. A first fan-shaped boss 5011 is provided on the side wall of the coil spring accommodating groove 501, and the free end 401 is fixedly connected to the first fan-shaped boss 5011, so that when the coil spring 4 is unfolded or retracted, the free end 401 drives the coil spring seat 5 to rotate together, thereby retracting and releasing the pull rope 6.

[0047] The slider 2011 and the housing 201 are an integrated structure, which is easy to assemble.

[0048] See also Figure 3 , Figure 5 and Figure 6 The coil spring seat 5 extends radially along the outer side to form a first annular boss 502, and two annular wire grooves 5021 are arranged on the first annular boss 502. The side wall of the coil spring receiving groove 501 and the first annular boss 502 are provided with notch grooves to facilitate the pull rope 6 to pass through for winding and fixing. A second fan-shaped boss 503 is arranged in the coil spring receiving groove 501, and the pull rope 6 is arranged around the annular wire groove 5021 and fixedly connected to the second fan-shaped boss 503. A coil spring cover 7 is installed outside the coil spring seat 5, and the coil spring cover 7 is provided with a second annular boss 701. The coil spring cover 7 is fixed to the limiting column 2012 by screws 8, and the second annular boss 701 covers the annular wire groove 5021. The limiting column 2012 is provided with a clamping groove in the radial direction, and the end of the drum part 402 passes through the clamping groove and is clamped on the limiting column 2012. When the screw 8 locks the coil spring cover 7, the end of the screw 8 abuts against the end of the drum part 402, further fixing the end of the drum part 402 to prevent it from escaping from the limiting column 2012. The second annular boss 701 covers the annular wire groove 5021, so that the pull rope 6 can always be located in the annular wire groove 5021 during the stretching or contraction process, preventing the pull rope 6 from being disordered or escaping from the annular wire groove 5021, so that the rotation of the coil spring 4 is more stable. A winding groove 504 is formed between the bottom of the first annular boss 502 and the inner wall of the housing 201, and the stretching will be wound in the winding groove 504 during contraction, and the pull rope 6 can be prevented from being disordered when winding. A circular convex rib is provided on the side of the coil spring seat 5 facing the housing 201, which can reduce friction and make the coil spring seat 5 rotate more smoothly.

[0049] See also Figure 1 and Figure 4The pulley assembly includes two fixed pulleys 9, and two corresponding limiting bosses 2013 are arranged on the housing 201 and the housing cover 202, wherein one of the pulleys 9 is installed between the two limiting bosses 2013 through a pin shaft, and the other fixed pulley 9 is installed at the top of the accommodating space 101 through a pin shaft. The pull rope 6 connected by the coil spring seat 5 is successively wound around the two fixed pulleys 9 and fixedly connected to the slider 2011, and the fixed pulley 9 can play the role of tension guide. A side of the housing 201 opposite to the pull rope 6 is provided with an avoidance groove to prevent the pull rope 6 from being worn against the side wall of the housing 201 when it is stretched or contracted.

[0050] The working principle of this embodiment is as follows: an external display is installed on the lifting seat 2. It should be noted that in this embodiment, the elastic coefficient of the coil spring 4 is selected to match the gravity of the display, and pressure is applied to the display, so that the display drives the lifting seat 2 to move on the bracket 1, and the slider 2011 slides and pulls the pull rope 6 to drive the reel part 402 to unfold or reel synchronously. Under the action of the elastic force and friction force of the coil spring 4, the gravity of the display and the lifting seat 2 can be balanced, so that the display can stay at any position within the travel range.

[0051] It can be seen that the display lifting device of the present invention is provided with a bracket and a lifting seat, and the slider of the lifting seat can slide in the accommodating space of the bracket. With this structure, the bracket can be square, cylindrical or polygonal, and the specific form is not limited and can be selected according to needs. The diameter or size of the bracket can be within 12 mm, which greatly reduces the volume of the bracket, is easy to process, reduces the use of materials, reduces costs, and can bring a higher aesthetic feeling to users; the slider outer fixing sleeve is provided with a slider sleeve, which reduces friction through the slider sleeve, and effectively prevents jamming, can increase the damping force when the lifting seat slides, and brings better to users. The use of body sensing can prevent noise and assembly shaking; a pulling mechanism is installed in the lifting seat, which includes a coil spring installed in the coil spring seat and a pull rope respectively connecting the slider and the coil spring seat. When the lifting seat is moved up and down along the bracket under the application of external force, the coil spring is synchronously unfolded or reeled by contracting or stretching the pull rope. Under the action of the elastic force of the coil spring and the friction between the slider sleeve and the accommodating space, the gravity of the display and the lifting seat can be balanced, so that the lifting seat can stay at any position within the travel range. This structure is simple, easy to assemble, and has good stability. It can ensure that the lifting seat stays more stably, further saving costs.

[0052] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A display lifting device, characterized in that: include: A bracket (1) is provided with a containing space (101); a notch (102) communicating with the containing space (101) is provided on one side of the bracket (1) along a height direction; The lifting seat (2) is provided with a sliding block (2011), the sliding block (2011) passes through the slot (102) and is slidably fitted in the accommodating space (101), and there is friction between the sliding block (2011) and the inner wall of the accommodating space (101); A pulling mechanism is installed in the lifting seat (2), comprising a coil spring (4), a coil spring seat (5), a pulley assembly and a pull rope (6); the coil spring seat (5) is rotatably installed in the lifting seat (2); one end of the pull rope (6) is fixedly connected to the coil spring seat (5), and the other end of the pull rope (6) is connected to the slider (2011) by passing through the pulley assembly; the coil spring (4) comprises a free end (401) and a drum portion (402); the free end (401) is fixedly connected to the coil spring seat (5), and the drum portion (402) is rotatably arranged in the lifting seat (2); when the lifting seat (2) moves up and down along the bracket (1) under the application of external force, the drum portion (402) is synchronously unfolded or reeled, and under the action of the elastic force of the coil spring (4) and the friction force, the lifting seat (2) can stay at any position within the travel range; The lifting seat (2) comprises a shell (201) and a shell cover (202) mounted on the shell (201); a limiting column (2012) is arranged in the shell (201); the coil spring seat (5) is rotatably sleeved on the limiting column (2012); a coil spring accommodating groove (501) is arranged in the coil spring seat (5); the winding drum portion (402) is arranged in the coil spring accommodating groove (501); an end of the winding drum portion (402) is fixedly connected to the limiting column (2012); a first fan-shaped boss (5011) is arranged on the side wall of the coil spring accommodating groove (501) ), the free end (401) is fixedly connected to the first fan-shaped boss (5011); the coil spring seat (5) extends radially outward to form a first annular boss (502), and the first annular boss (502) is provided with an annular wire groove (5021); a second fan-shaped boss (503) is provided in the coil spring accommodating groove (501), and the pull rope (6) is arranged around the annular wire groove (5021) and fixedly connected to the second fan-shaped boss (503); a winding groove (504) is formed between the first annular boss (502) and the inner wall of the housing (201).

2. The display lifting device according to claim 1, characterized in that: A coil spring cover (7) is installed outside the coil spring seat (5), and the coil spring cover (7) is provided with a second annular boss (701). The coil spring cover (7) is fixed to the limiting column (2012) by means of screws (8), and the second annular boss (701) covers the annular wire groove (5021).

3. The display lifting device according to claim 1, characterized in that: The pulley assembly comprises two fixed pulleys (9), and two corresponding limiting bosses (2013) are provided on the housing (201) and the housing cover (202), wherein one of the fixed pulleys (9) is installed between the two limiting bosses (2013) via a pin, and the other fixed pulley (9) is installed at the top of the accommodating space (101) via a pin; the pull rope (6) is sequentially wound around the two fixed pulleys (9) and connected to the slider (2011).

4. The display lifting device according to claim 1, characterized in that: The slider (2011) and the housing (201) are an integrated structure.

5. The display lifting device according to claim 1, characterized in that: The outer cover of the slider (2011) is provided with a slider sleeve (3), and the outer side of the slider sleeve (3) is provided with a plurality of convex ribs, and the friction force is generated by the contact between the convex ribs and the inner wall of the accommodating space (101).

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